Roadbase and ground spawn support (#132)

* Roadbase and ground spawn support

Implemented support for roadbases and ground spawn slots at airfields and FOBs. The ground spawn slots can be inserted in campaigns by placing either an A-10A or an AJS37 at a runway or ramp. This will cause an invisible FARP, an ammo dump and a fuel dump to be placed (behind the slot in case of A-10A, to the side in case of AJS37) in the generated campaigns. The ground spawn slot can be used by human controlled aircraft in generated missions. Also allowed the use of the four-slot FARP and the single helipad in campaigns, in addition to the invisible FARP. The first waypoint of the placed aircraft will be the center of a Remove Statics trigger zone (which might or might not work in multiplayer due to a DCS limitation).

Also implemented three new options in settings:
 - AI fixed-wing aircraft can use roadbases / bases with only ground spawns
   - This setting will allow the AI to use the roadbases for flights and transfers. AI flights will air-start from these bases, since the AI in DCS is not currently able to take off from ground spawns.
 - Spawn trucks at ground spawns in airbases instead of FARP statics
 - Spawn trucks at ground spawns in roadbases instead of FARP statics
   - These settings will replace the FARP statics with refueler and ammo trucks at roadbases. Enabling them might have a negative performance impact.

* Modified calculate_parking_slots() so it now takes into account also helicopter slots on FARPs and also ground start slots (but only if the aircraft is flyable or the "AI fixed-wing aircraft can use roadbases / bases with only ground spawns" option is enabled in settings).

* Improved the way parking slots are communicated on the basemenu window.

* Refactored helipad and ground spawn appends to static methods _add_helipad and _add_ground_spawn in mizcampaignloader.py
Added missing changelog entries.
Fixed tgogenerator.py imports.
Cleaned up ParkingType() construction.

* Added test_control_point_parking for testing that the correct number of parking slots are returned for control point in test_controlpoint.py

* Added test_parking_type_from_squadron to test the correct ParkingType object is returned for a squadron of Viggens in test_controlpoint.py

* Added test_parking_type_from_aircraft to test the correct ParkingType object is returned for Viggen aircraft type in test_controlpoint.py

---------

Co-authored-by: Raffson <Raffson@users.noreply.github.com>

tests/theater/test_controlpoint.py

@@ -1,9 +1,24 @@
 import pytest
 from typing import Any
 
+from dcs import Point
+from dcs.planes import AJS37
 from dcs.terrain.terrain import Airport
 from game.ato.flighttype import FlightType
-from game.theater.controlpoint import Airfield, Carrier, Lha, OffMapSpawn, Fob
+from game.dcs.aircrafttype import AircraftType
+from game.dcs.countries import country_with_name
+from game.point_with_heading import PointWithHeading
+from game.squadrons import Squadron
+from game.squadrons.operatingbases import OperatingBases
+from game.theater.controlpoint import (
+    Airfield,
+    Carrier,
+    Lha,
+    OffMapSpawn,
+    Fob,
+    ParkingType,
+)
+from game.utils import Heading
 
 
 @pytest.fixture
@@ -117,3 +132,89 @@ def test_mission_types_enemy(mocker: Any) -> None:
     off_map_spawn = OffMapSpawn(name="test", position=None, theater=None, starts_blue=True)  # type: ignore
     mission_types = list(off_map_spawn.mission_types(for_player=True))
     assert len(mission_types) == 0
+
+
+@pytest.fixture
+def test_control_point_parking(mocker: Any) -> None:
+    """
+    Test correct number of parking slots are returned for control point
+    """
+    # Airfield
+    mocker.patch("game.theater.controlpoint.unclaimed_parking", return_value=10)
+    airport = Airport(None, None)  # type: ignore
+    airport.name = "test"  # required for Airfield.__init__
+    point = Point(0, 0, None)  # type: ignore
+    control_point = Airfield(airport, theater=None, starts_blue=True)  # type: ignore
+    parking_type_ground_start = ParkingType(
+        fixed_wing=False, fixed_wing_stol=True, rotary_wing=False
+    )
+    parking_type_rotary = ParkingType(
+        fixed_wing=False, fixed_wing_stol=False, rotary_wing=True
+    )
+    for x in range(10):
+        control_point.ground_spawns.append(
+            (
+                PointWithHeading.from_point(
+                    point,
+                    Heading.from_degrees(0),
+                ),
+                point,
+            )
+        )
+    for x in range(20):
+        control_point.helipads.append(
+            PointWithHeading.from_point(
+                point,
+                Heading.from_degrees(0),
+            )
+        )
+
+    assert control_point.unclaimed_parking(parking_type_ground_start) == 10
+    assert control_point.unclaimed_parking(parking_type_rotary) == 20
+
+
+@pytest.fixture
+def test_parking_type_from_squadron(mocker: Any) -> None:
+    """
+    Test correct ParkingType object returned for a squadron of Viggens
+    """
+    mocker.patch(
+        "game.theater.controlpoint.parking_type.include_fixed_wing_stol",
+        return_value=True,
+    )
+    aircraft = next(AircraftType.for_dcs_type(AJS37))
+    squadron = Squadron(
+        name="test",
+        nickname=None,
+        country=country_with_name("Sweden"),
+        role="test",
+        aircraft=aircraft,
+        max_size=16,
+        livery=None,
+        primary_task=FlightType.STRIKE,
+        auto_assignable_mission_types=set(aircraft.iter_task_capabilities()),
+        operating_bases=OperatingBases.default_for_aircraft(aircraft),
+        female_pilot_percentage=0,
+    )  # type: ignore
+    parking_type = ParkingType().from_squadron(squadron)
+
+    assert parking_type.include_rotary_wing == False
+    assert parking_type.include_fixed_wing == True
+    assert parking_type.include_fixed_wing_stol == True
+
+
+@pytest.fixture
+def test_parking_type_from_aircraft(mocker: Any) -> None:
+    """
+    Test correct ParkingType object returned for Viggen aircraft type
+    """
+    mocker.patch(
+        "game.theater.controlpoint.parking_type.include_fixed_wing_stol",
+        return_value=True,
+    )
+    aircraft = next(AircraftType.for_dcs_type(AJS37))
+    parking_type = ParkingType().from_aircraft(aircraft, False)
+
+    assert parking_type.include_rotary_wing == False
+    assert parking_type.include_fixed_wing == True
+    assert parking_type.include_fixed_wing_stol == True